<template>
  <div class="app-container">
    <el-form
      v-show="showSearch"
      :model="queryParams"
      ref="queryForm"
      size="small"
      :inline="true"
      label-width="68px"
    >
      <el-form-item label="操作名称" prop="name">
        <el-input
          v-model="queryParams.name"
          placeholder="请输入操作名称"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">
          搜索
        </el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">
          重置
        </el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          v-hasPermi="['system:manual:add']"
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
        >
          新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          v-hasPermi="['system:manual:remove']"
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
        >
          批量删除
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList" />
    </el-row>

    <el-table
      v-loading="loading"
      :data="dataList"
      @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="序号" type="index" width="80" align="center" />
      <el-table-column label="操作名称" align="center" prop="name" />
      <el-table-column label="封面图片" align="center">
        <template slot-scope="scope">
          <Image-preview :src="scope.row.cover" :width="100" :height="100" />
        </template>
      </el-table-column>
      <el-table-column label="资源" align="center">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-view"
            @click="handleView(scope.row)"
          >
            查看资源
          </el-button>
        </template>
      </el-table-column>
      <el-table-column label="状态" align="center" width="100">
        <template slot-scope="scope">
          <el-button
            :type="scope.row.status == 0 ? 'success' : 'info'"
            size="mini"
            @click="handleStatusChange(scope.row)"
          >
            {{ scope.row.status == 0 ? "正常" : "停用" }}
          </el-button>
        </template>
      </el-table-column>
      <el-table-column label="排序" align="center" prop="sort" width="100" />

      <el-table-column label="操作" align="center" width="180">
        <template slot-scope="scope">
          <el-button
            v-hasPermi="['system:manual:edit']"
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
          >
            修改
          </el-button>
          <el-button
            v-hasPermi="['system:manual:remove']"
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
          >
            删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total > 0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改操作说明对话框 -->
    <el-dialog
      :title="title"
      :visible.sync="open"
      width="800px"
      append-to-body
      :close-on-click-modal="false"
      @close="cancel"
    >
      <el-form ref="editForm" :model="editForm" :rules="rules" label-width="80px">
        <el-form-item label="操作名称" prop="name">
          <el-input v-model="editForm.name" placeholder="请输入操作名称" maxlength="30" />
        </el-form-item>
        <el-form-item label="封面图片" prop="cover">
          <Image-upload v-model="editForm.cover" :limit="1" @delete="handleDeleteFile" />
        </el-form-item>
        <el-form-item label="资源类型" prop="type">
          <el-radio-group v-model="editForm.type" @change="handleTypeChange">
            <el-radio :label="1">视频</el-radio>
            <el-radio :label="2">图片</el-radio>
            <!-- <el-radio :label="3">PDF</el-radio> -->
            <el-radio :label="4">富文本</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item
          v-if="[1, 2, 3].includes(editForm.type)"
          label="资源地址"
          prop="source"
        >
          <Video-upload
            v-if="editForm.type == 1"
            v-model="editForm.source"
            :limit="1"
            @delete="handleDeleteFile"
          />
          <Image-upload
            v-if="editForm.type == 2"
            v-model="editForm.source"
            :limit="1"
            @delete="handleDeleteFile"
          />
          <!-- <File-upload
            v-if="editForm.type == 3"
            v-model="editForm.source"
            :limit="1"
            :file-size="50"
            :file-type="['pdf']"
            @delete="handleDeleteFile"
          /> -->
        </el-form-item>
        <el-form-item v-if="editForm.type == 4" label="内容" prop="content">
          <editor v-model="editForm.content" :min-height="192" />
        </el-form-item>
        <el-form-item label="排序" prop="sort">
          <el-input v-model="editForm.sort" placeholder="请输入排序" type="number" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
    <el-dialog title="资源预览" :visible.sync="previewShow" width="500px">
      <div class="preview-content">
        <Image-preview
          v-if="info.type == 2"
          :src="info.source"
          :width="300"
          :height="300"
        />
        <video
          v-if="info.type == 1"
          :src="baseUrl + info.source"
          width="300"
          height="200"
          controls
        />
      </div>
      <div slot="footer">
        <el-button @click="previewShow = false">关 闭</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {
  listManual,
  getManual,
  delManual,
  addManual,
  updateManual,
} from "@/api/system/manual";
import { delFile } from "@/api/menu";

export default {
  name: "Manual",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 操作说明表格数据
      dataList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        status: null,
        name: null,
      },
      // 表单参数
      editForm: {},
      webFileName: "", // 服务器文件名
      // 表单校验
      rules: {
        name: [{ required: true, message: "操作名称不能为空", trigger: "blur" }],
        cover: [{ required: true, message: "封面图片不能为空", trigger: "blur" }],
        type: [{ required: true, message: "资源类型不能为空", trigger: "blur" }],
        source: [{ required: true, message: "资源地址不能为空", trigger: "blur" }],
      },
      baseUrl: process.env.VUE_APP_BASE_API,
      previewShow: false, // 预览弹窗
      info: {}, // 预览信息
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询操作说明列表 */
    getList() {
      this.loading = true;
      listManual(this.queryParams)
        .then((res) => {
          this.dataList = res.rows;
          this.total = res.total;
        })
        .finally(() => {
          this.loading = false;
        });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.handleTypeChange();
      this.reset();
    },
    // 查看资源
    handleView(row) {
      if (row.type == 3) {
        window.open(this.baseUrl + row.source, "_blank");
      } else {
        this.info = row;
        this.previewShow = true;
      }
    },
    // 切换资源类型
    handleTypeChange() {
      if (this.editForm.source && this.webFileName) {
        let name = this.editForm.source.replace(this.baseUrl, "");
        if (name != this.webFileName) {
          delFile({ fileName: name });
        }
        this.editForm.source = "";
      }
    },
    // 删除资源
    handleDeleteFile(val) {
      let name = val.file;
      name = name.replace(this.baseUrl, "");
      if (this.webFileName && name != this.webFileName) {
        delFile({ fileName: name });
      }
    },
    // 表单重置
    reset() {
      this.editForm = {
        id: null,
        type: 4,
        cover: null,
        source: null,
        content: null,
        name: null,
        sort: null,
      };
      this.webFileName = "";
      this.resetForm("editForm");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map((item) => item.id);
      this.single = selection.length !== 1;
      this.multiple = !selection.length;
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加操作说明";
    },
    // 状态修改
    handleStatusChange(row) {
      let text = row.status == 0 ? "停用" : "启用";
      this.$modal
        .confirm(`确认要${text}该操作说明吗?`)
        .then(() => {
          updateManual({
            id: row.id,
            status: row.status == 0 ? 1 : 0,
          }).then(() => {
            this.$modal.msgSuccess(`${text}成功`);
            this.getList();
          });
        })
        .catch(() => {});
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      getManual(row.id).then((res) => {
        this.webFileName = res.data.source;
        this.editForm = res.data;
        this.open = true;
        this.title = "修改操作说明";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["editForm"].validate((valid) => {
        if (valid) {
          let request = this.editForm.id ? updateManual : addManual;
          request(this.editForm).then((res) => {
            this.$modal.msgSuccess("操作成功");
            this.open = false;
            this.getList();
            let name = this.editForm.source.replace(this.baseUrl, "");
            if (this.webFileName && name != this.webFileName) {
              delFile({ fileName: this.webFileName });
            }
            this.webFileName = "";
          });
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal
        .confirm(`确认删除已选中${row.id ? 1 : ids.length}条操作说明吗？`)
        .then(() => {
          delManual(ids).then(() => {
            this.$modal.msgSuccess("删除成功");
            this.getList();
          });
        })
        .catch(() => {});
    },
  },
};
</script>
<style lang="scss" scoped>
.preview-content {
  display: flex;
  justify-content: center;
}
</style>
